Add first class support for spatial audio in bevy

[harudagondi]

Compared to kira and rodio, oddio already has support for spatial audio. We should expose it in an ergonomic api.

Solution

The MVP solution should look something like this.

• Add Emitter component, that emits sound from its location. Its struct should be based on oddio::SpatialOptions, and its methods should be similar to bevy_oddio::Audio.
• Add Listener component. This is where the oddio::SpatialScene should be, but it should not be where the play method is. This, should, however, have the set_listener_rotation method.

There should be several examples like:

• A stationary listener, and an emitter that moves around it in a circle. (2D)
• A highway, where the listener is stationary at a side, and several cars (emitters) zoom past it. (2D)
• A Five Nights at Freddy's style camera system, where each location has its own emitters, but those emitters become softer the farther the camera from the source. (2D or 3D)

Note:

• Waiting until the release of bevy 0.9 via [Merged by Bors] - Expose mint feature in bevy_math/glam bevyengine/bevy#5857